Use this palaeographic utility to apply a stated dating, script, abbreviation, codicological, metrological, layout, or condition rule consistently while preparing manuscripts for scholarly review.

Leaf height

Positive measured leaf height in millimetres.

Leaf width

Positive measured leaf width in millimetres.

Folio min

Positive adjustable folio lower bound in millimetres (stated convention).

Quarto min

Positive adjustable quarto lower bound in millimetres (stated convention).

Octavo min

Positive adjustable octavo lower bound in millimetres (stated convention).

Classify a codicological format from measured leaf height under the stated adjustable band convention (foliage of at least 280 mm is folio, 200-279 quarto, 130-199 octavo, below 130 small format) and report the exact width-to-height aspect ratio. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Format

Bibliographic format under the stated bands.

Aspect ratio

Leaf width divided by leaf height.

• Script and manuscript evidence varies by language, region, institution, period, scribe, material, restoration, and cataloguing convention. A heuristic flag or score is not an authoritative date, hand attribution, reading, provenance, or conservation diagnosis.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Retain page images, scale, foliation, material, provenance, diplomatic transcription, uncertainty, and comparison exemplars; confirm conclusions with codicological context and specialist judgment.

• Coptic Module Ratio Classifier

  Divide measured letter height by measured pen-nib width for a Coptic hand and classify the module as fine, medium or broad using YOUR supplied thresholds (required inputs, since no single scholarly convention is universal).

• Copperplate Shade Classifier

  Classify round-hand shading under the stated bands on the thick-to-thin stroke-width ratio: below 1.5 monoline, below 3 moderate_shading, and from 3 upward full_copperplate_shading.

• Two-Column Gutter Checker

  Check whether two measured columns plus their gutter reproduce the full text-block width within a stated default tolerance of one millimetre and report the signed discrepancy and the exact column-width ratio.